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United States. Bureau of Labor Statistics. "Employment and Earnings Statistics for States and Areas, 1939-65 : Bulletin of the United States Bureau of Labor Statistics, No. 1370-3,"
Employment, Hours, and Earnings, States and Areas
(1966).
https://fraser.stlouisfed.org/scribd/?item_id=522871&filepath=/files/docs/publications/bls/bls_1370-03_1966.pdf, accessed on December 13, 2017.